I had a good time staying at Evan's guest house for a week. It was my first week since I moved to Bangkok but I had no problems to live here as Evan always tried to help me and give some useful information around there.
The house is located near MRT staion and it was easy to get the house and the room I stayed is clean and comfy enough.

I strongly recommend you to stay at Evan's house when you vitis Bangkok. I would also stay there if I will ever have a chance to visit there.